Ehhh, from memory the N7 shadow had a least a little more going on costume/armour wise... maybe if this is a pared down version. Plus I know for a fact their monomolecular blades were straight-edged, more akin to one of Leonardo's blades than actual katana, not to mention a little more futuristic in handle design.

After all, I got a real good look at Kai Leng's when I broke it in half.

Maybe an alternate interpretation or one based more on vague description than reffs.